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Optics Letters

Optics Letters


  • Vol. 18, Iss. 4 — Feb. 15, 1993
  • pp: 314–316

Vibration-insensitive fiber-optic current sensor

Natale C. Pistoni and Mario Martinelli  »View Author Affiliations

Optics Letters, Vol. 18, Issue 4, pp. 314-316 (1993)

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The measurement of the electric current with an optical fiber sensor can be made insensitive to external vibrations that act on the leading fiber by using a circuit involving a mirrored Faraday rotator and a highly twisted low-birefringence fiber. A description of the optical configuration as well as our first experimental results are presented. The circuit gives a passive compensation of the disturbances with a measured rejection of the order of 30 dB while maintaining the correct sensitivity to the measurement of the Faraday effect.

© 1993 Optical Society of America

Original Manuscript: September 21, 1992
Published: February 15, 1993

Natale C. Pistoni and Mario Martinelli, "Vibration-insensitive fiber-optic current sensor," Opt. Lett. 18, 314-316 (1993)

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